Accessibility for detents behaves different in fullscreen cover

The only way I found to make the accessibility focus work correctly in the detent in a fullscreen cover is to apply the focus manually. The issue is in the ContentView the grabber works while in the fullscreen it does not. Is there something I am missing or is this a bug. I also don't understand why I need to apply focus in the fullscreen cover while in the ContentView I do not.

struct ContentView: View {

    @State private var buttonClicked = false
    @State private var bottomSheetShowing = false

    var body: some View {
        NavigationView {
            VStack {
                Button(action: {
                    buttonClicked = true
                }, label: {
                    Text("First Page Button")
                        .padding()
                        .background(Color.blue)
                        .foregroundColor(.white)
                        .cornerRadius(8)
                })
                .accessibilityLabel("First Page Button")

                FullscreenView2()
            }
            .navigationTitle("Welcome")
            .fullScreenCover(isPresented: $buttonClicked) {
                FullscreenView(buttonClicked: $buttonClicked, bottomSheetShowing: $bottomSheetShowing)
            }
        }
    }
}

struct FullscreenView: View {
    @Binding var buttonClicked: Bool
    @Binding var bottomSheetShowing: Bool

    var body: some View {
        NavigationView {
            VStack {
                Button(action: {
                    bottomSheetShowing = true
                }, label: {
                    Text("Show Bottom Sheet")
                        .padding()
                        .background(Color.green)
                        .foregroundColor(.white)
                        .cornerRadius(8)
                })
            }
            .accessibilityHidden(bottomSheetShowing)
            .navigationTitle("Fullscreen View")
            .toolbar {
                ToolbarItem(placement: .navigationBarLeading) {
                    Button(action: {
                        buttonClicked = false
                    }, label: {
                        Text("Close")
                    })
                    .accessibilityLabel("Close Fullscreen View Button")
                }
            }
            .accessibilityHidden(bottomSheetShowing)
            .onChange(of: bottomSheetShowing, perform: { _ in })
            .sheet(isPresented: $bottomSheetShowing) {
                if #available(iOS 16.0, *) {
                    BottomSheetView(bottomSheetShowing: $bottomSheetShowing)
                        .presentationDetents([.medium, .large])
                } else {
                    BottomSheetView(bottomSheetShowing: $bottomSheetShowing)
                }
            }
        }
    }
}

struct FullscreenView2: View {
    @State var bottomSheetShowing = false

    var body: some View {
        VStack {
            Button(action: {
                bottomSheetShowing = true
            }, label: {
                Text("Show Bottom Sheet")
                    .padding()
                    .background(Color.green)
                    .foregroundColor(.white)
                    .cornerRadius(8)
            })
        }
        .accessibilityHidden(bottomSheetShowing)
        .navigationTitle("Fullscreen View")
        //.accessibilityHidden(bottomSheetShowing)
        .onChange(of: bottomSheetShowing, perform: { _ in })
        .sheet(isPresented: $bottomSheetShowing) {
            if #available(iOS 16.0, *) {
                BottomSheetView(bottomSheetShowing: $bottomSheetShowing)
                    .presentationDetents([.medium, .large])
            } else {
                BottomSheetView(bottomSheetShowing: $bottomSheetShowing)
            }
        }
    }
}

struct BottomSheetView: View {
    @Binding var bottomSheetShowing: Bool
//    @AccessibilityFocusState var isFocused: Bool

    var body: some View {
        VStack(spacing: 20) {
            Text("Bottom Sheet")
                .font(.headline)
                .accessibilityAddTraits(.isHeader)

            Button(action: {
                bottomSheetShowing = false
            }, label: {
                Text("Dismiss")
                    .padding()
                    .background(Color.red)
                    .foregroundColor(.white)
                    .cornerRadius(8)
            })
            .accessibilityLabel("Dismiss Bottom Sheet Button")
        }
        .padding()
        .frame(maxWidth: .infinity, maxHeight: .infinity)
        .background(
            Color(UIColor.systemBackground)
                .edgesIgnoringSafeArea(.all)
        )
        .accessibilityAddTraits(.isModal) // Indicates that this view is a modal
//        .onAppear {
//            // Set initial accessibility focus when the sheet appears
//            DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
//                isFocused = true
//            }
//        }
//        .accessibilityFocused($isFocused)

    }
}